#include<iostream>
using namespace std;
#include<unistd.h>
#include<fcntl.h>
#include<cmath>
int main()
{
                int randoms=open("/dev/random",O_RDONLY);
                int randomn;
                read(randoms,&randomn,sizeof(randomn));
                close(randoms);
                randomn=abs(randomn);
                cout<<randomn<<endl;
                return 0;
}
